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这是一个描写喜欢摄影的高中一年级生泽渡枫和她周围的人的日常琐事的梦物语。两人心照不宣地交换了下目光，头一回觉得：家里兄弟姊妹似乎太多了点，往后这生日节礼啥的，怕是要闹得人头疼。持有奇怪暗号的男子被杀!?被害人竟是30年前一起诱拐案的目击证人！过去与现在——隐藏在两起案件背后可悲又可叹的“母亲的心思”究竟是什么...If (pos < collection.size ()-1) {For example, if we want to implement a JS function, Such as form validation, Then if we don't use the policy pattern in javascript described in the previous chapter to solve the form validation encapsulation code, It is a temporary form validation function written by itself. Certainly without any encapsulation, Then at this time, we will pop up a prompt to the user for whether the two values are equal. If there is a form verification on another page, their judgment method and business logic are basically the same, but the comparison parameters are different. Should we consider writing a form verification code again? So now we can consider using the template method pattern to solve this problem. Common methods are extracted, and different methods are implemented by specific subclasses. This design code also has the advantages of stronger scalability and better code ~(2) Problem Orientation:比如亲近些的人家，主要长辈的生日、小儿出生等都要送礼。